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Illinois doesn't give every business the same date — your annual report deadline is keyed to your own anniversary month, the month your LLC was formed or registered. That's what makes it easy to miss: there's no single statewide "everyone files by X" date to anchor to, so if you don't know your own anniversary month, you don't know your deadline. Here's how the timing works, what it costs, and what happens if it slips.
| Item | Illinois LLC |
|---|---|
| Deadline | Before the first day of your anniversary month each year (the month the LLC was formed or registered in Illinois) |
| Where | Illinois Secretary of State — online via the Business Services LLC annual report portal, or by paper form LLC-50.1 |
| Filing fee (LLC) | $75 |
| Late penalty | $100 if not filed within 60 days of the due date |
| Reinstatement (after dissolution) | $200 reinstatement fee plus all delinquent annual reports at $75 each, plus applicable penalties |
Find your anniversary month first. It's the month your LLC's Articles of Organization were filed (or, for an out-of-state LLC, the month you registered to do business in Illinois). Your report is due before the first day of that month every year — so an LLC formed on March 14 has a report due before March 1 each year. If you're not sure, look up your entity on the Secretary of State's business database; the formation date is on the record.
The phrasing trips people up. "Before the first day of the anniversary month" means the report and fee must be on file prior to the month begins — not sometime during it. Practically, treat the last day of the month before your anniversary month as your real deadline. The Secretary of State typically sends a reminder to the address on file about 60 days ahead, but that notice depends on your registered agent and contact information being current — which is one of the things the annual report itself keeps accurate. Don't rely on the reminder as your only trigger.
Illinois gives a short runway and then charges for it. File within 60 days of the due date and it's still just the $75. Cross that 60-day line and a $100 penalty attaches on top — more than doubling a routine filing. Keep ignoring it and the LLC drifts toward not in good standing and, eventually, administrative dissolution by the Secretary of State for failing to file.
| Where you are | What it costs |
|---|---|
| On time (before the 1st of the anniversary month) | $75 |
| Filed within 60 days late | $75 (no penalty yet) |
| More than 60 days late | $75 + $100 penalty = $175 |
| Administratively dissolved, then reinstating | $200 reinstatement + $75 for each missed year + penalties |
Dissolution is where a $75 habit turns into a several-hundred-dollar cleanup. To reinstate an administratively dissolved Illinois LLC you file the reinstatement application (form LLC-35.40), pay the $200 reinstatement fee, and bring every delinquent annual report current at $75 apiece — plus penalties. Back reports can accumulate across multiple years, so the longer the entity sits dissolved, the bigger the bill to revive it. And while dissolved, the LLC isn't in good standing: its name protection lapses and it can face trouble with banking, financing, contracts, and standing to sue in the entity's name. Catching the anniversary-month deadline each year is dramatically cheaper than any of this.
Illinois's anniversary-month system is the opposite of a fixed statewide date like Florida's hard May 1 deadline — the flexibility of "your own month" is exactly what makes it forgettable. It's also unlike Pennsylvania, whose annual report is brand new as of 2025, or Texas, which has no Secretary of State annual report at all. If you're unsure whether your state's obligation is even an "annual report" versus a tax filing, start with franchise tax vs. annual report, explained. And if you've already missed a deadline in any state, the recovery path is in what to do if you missed your annual report.
The hard part in Illinois is just knowing your own date. EntityMinder pins your anniversary-month deadline to a calendar and reminds you well before the first of the month — across every state you hold entities in. The beta waitlist is open; planned pricing is $9/month.
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